Very much so. I-BMP iquka imiqolo ye-RGB engacocwanga engacocwanga enesihloko esincinci, ngoko ke ilungile kwaye ikhulu — rhoqo 10-20x ubungakanani bomfanekiso ofanayo njenge-PNG. That determines both the headroom available and whether the saving costs you anything in fidelity.
Yintoni impazamo eqhelekileyo xa uxinzelela BMP images?